Abstract: A network transfer system for transferring a voice call and data between two or more call centers linked by independent voice and data networks is disclosed. The system effects the transfer of the voice call over the voice network without requiring additional information to be transferred with the call. A network transfer module receives a request from the sending call center and directs the sending call center to connect the call to a specific address in a receiving call center. The network transfer module transfers the data to the call receptor in the receiving call center where it is associated with the address to which the call has been directed. The call receptor at the receiving call center assigns a time acceptance window to each call being sent so that data association with wrong numbers is minimized and the capability for queuing multiple calls at a singe address is established.